There was little change in people's grocery shopping habits in the last year, according to a report from Checkout Magazine and Ignite Research.
The latest "Where We Shop" report shows that one third of Irish consumers still do their "main weekly shop" at Tesco.
Some of the reasons shoppers gave for choosing Tesco as their main shopping destination included the wide range of goods (68%), convenient location (65%) and strong customer loyalty programme (50%).
The report, which measured the shopping habits of 1,000 Irish consumers, found that 23% of respondents do their "main shop" at Aldi, followed by 16% at Lidl, 15% at Dunnes Stores, and 11% at SuperValu.
Shoppers that conduct their main shop at Aldi and Lidl cite value for money as the key reason behind their choice,
Shoppers in Leinster are more likely than any other region to choose Aldi for their main shop (29%), while Dublin shoppers are more likely to choose Lidl (23%), and Munster shoppers are more likely to choose Dunnes (23%).
Checkout said that SuperValu was seen as the retailer that is the "best at promoting Irish" products by 39% of respondents, up from 33% last year. The number of people that deemed Dunnes to be the best at promoting Irish fell to 17% from 23% last year.
"This year's Where We Shop report indicates that when it comes to our shopping habits, Irish consumers really are creatures of habit," said Stephen Wynne-Jones, editor, Checkout magazine.
"While value for money is still a key decision driver for most households, the most successful stores marry this with range, location, access, friendly staff and quality produce - factors that can have a huge influence on where consumers decide to shop," he added.